This should be easy to fix though.
"/home/ezyang/.local/bin/ghc" -H32m -O -Wall -Werror -H64m -O0 -package-conf
libraries/bootstrapping.conf -package-name ghc-7.1 -hide-all-packages -i
-icompiler/basicTypes -icompiler/cmm -icompiler/codeGen -icompiler/coreSyn
-icompiler/deSugar -icompiler/ghci -icompiler/hsSyn -icompiler/iface
-icompiler/llvmGen -icompiler/main -icompiler/nativeGen -icompiler/parser
-icompiler/prelude -icompiler/profiling -icompiler/rename -icompiler/simplCore
-icompiler/simplStg -icompiler/specialise -icompiler/stgSyn -icompiler/stranal
-icompiler/typecheck -icompiler/types -icompiler/utils -icompiler/vectorise
-icompiler/stage1/build -icompiler/stage1/build/autogen -Icompiler/stage1/build
-Icompiler/stage1/build/autogen -Icompiler/stage1
-Icompiler/../libraries/base/cbits -Icompiler/../libraries/base/include
-Icompiler/. -Icompiler/parser -Icompiler/utils -optP-include
-optPcompiler/stage1/build/autogen/cabal_macros.h -package Cabal-1.11.0
-package array-0.3.0.2 -package base-4.3.1.0 -package bin-package-db-0.0.0.0
-package bytestring-0.9.1.10 -package containers-0.4.0.0 -package
directory-1.1.0.0 -package filepath-1.2.0.0 -package hoopl-3.8.7.0 -package
hpc-0.5.0.6 -package old-time-1.0.0.6 -package process-1.0.1.5 -package
unix-2.4.2.0 -Wall -fno-warn-name-shadowing -fno-warn-orphans -XHaskell98
-XCPP -XMagicHash -XUnboxedTuples -XPatternGuards -XForeignFunctionInterface
-XEmptyDataDecls -XTypeSynonymInstances -XMultiParamTypeClasses
-XFlexibleInstances -XRank2Types -XScopedTypeVariables -XDeriveDataTypeable
-DSTAGE=1 -O -no-user-package-conf -rtsopts -odir compiler/stage1/build
-hidir compiler/stage1/build -stubdir compiler/stage1/build -hisuf hi -osuf o
-hcsuf hc -c compiler/utils/MonadUtils.hs -o compiler/stage1/build/MonadUtils.o
compiler/basicTypes/SrcLoc.lhs:188:1:
Illegal standalone deriving declaration
Use -XStandaloneDeriving to enable this extension
Cheers,
Edward
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